Lighting device



FIG. 1. is a top perspective view of the top, front, and right sides of a lighting device showing our new design;

FIG. 2. is a bottom perspective view of the bottom, front, and right sides thereof;

FIG. 3. is a front view thereof;

FIG. 4. is a rear view thereof;

FIG. 5. is a left side view thereof;

FIG. 6. is a right side view thereof;

FIG. 7. is a top plan view thereof; and,

FIG. 8. is a bottom plan view thereof.

The broken lines shown represent portions of the lighting device and form no part of the claimed design. 

CLAIM The ornamental design for a lighting device, as shown and described. 